Water-tube steam-boiler.



(Application filed May 22, '1901.)

3 Sheets-Sheet I.

(No Model.)

Lmm

WITNESSES WJBM M INVENTOR n 2 News Pmzws co. mnmumou WASHINGTON, o c

No. 695,869. Patented Mar. I8, I902.

C. B. REARICK.

WATER TUBE STEAM BOILER.

, (Application filed May 22, 1901.) (No Model.) 3 Sheets-Sheet 2.

T WITNESSES 3 INVENTOR No. 695,869. Patented Mar. l8, I902. c. B.REARIBK.

WATER TUBE STEAM BOILER.

Sheet 3.

(Application filed May 22, 1901.

3 Sheets- (No Model.)

IN VEN TOR WITNESSES M14 I m: Noams warms ca. monmuma, WASNVNGTON, on;

CHARLES E. REARIOK, OF NElV YORK, N. Y.

WATER TUBE STEAM-BOlLER.

EEEIJIFZCATIQDI totalling of Letters Eatezct no. 695,869, dated March18, 1902.

Application filed May 2% 1901. SJerial. No. SL455. (No model.)

0 a7], lull/015a 2125 may concern:

Be it known that 1, CHARLES l3. REARIOK, a citizen of the United States,residing in New Yorlgcouuty of New York, State of New York, haveinvented a new and useful Improvement in ater-Tube Steam-Boilers, ofwhich the following is a specification.

The invention relates "to the form and arrangement of headers and tubesconnected thereto which comprise the heating-surface of a watertubeboiler.

The purpose of my invention is to provide safe means for quicklyremoving injured tubes and for replacingsame with perfect ones in thetype of water-tube boiler composed of manifolds or headers connected bytubes, the object being to accomplish the same without passing theinjured or new tubes through the said headers or manifolds and withoutdisturbing the other tn hes, as is now most generally the practice.

Referring to the accompanying drawings and to the various views andreference-signs appearing thereon, Figure l is an end elevation, partlyin section, of a boiler of the general design as set forth in my pendingapplication, Serial No. 73%,314, filed October 21, 1899, with theexception that the headers, arrangement of tubes, &c., have been improved with a view to quickly removing and replacing same. Fig. 2 is aplan view of said boiler; Figs. 3 and 4, vertical sectional views ofupper and lower headers; Fig. 5, plan view of upper-header; Fig. (3,cross-sectional view on line X Y, Fig. 3, of upper headers; Fig. 7, planview of lower headers; and Fig. 8, cross-sectional view of lower headerson line S T, Fig. -l. Figs. Q'and 10 are alternative constructions ofheaders.

The same part is designated by the same reference-sign wherever itoccurs throughout the several views.

Figs. 1 and 2 show two boilers or units set with one furnace in commonto both, so for further consideration I shall only describe one of theseunits.

The boiler, as shown in the several views, consists of banks ofwater-tubes 1 upper and lower headers 2 and 3, respectively, into whichsaid tubes open at their respective ends; a steam and water drum a, intowhich upper headers 2 open, and downflow-pipes 5 from steam and waterdrum 4 to lower headers 3. The upper headers 2 and lower headers 3 areprovided with pockets 2 and 3, respectively, in the tube-sheet faces ofsuch headers, such pockets being in diameter somewhat larger than thewater-tubes 1 and a depth somewhat greater than the difference betweenthe length of such tubes and the distance between the headers 2 andlVhen the headers 2 and 3 are arranged to take only two tubes in width,the pockets 2 and 3 are arranged half in each header, as shown. Througheach of the headers 2 and 3 I may have holes 2 and 3", respectivelycommunicating with the pockets in such headers. The water-tubes 1 may bearranged with reference to the steam and water drum in double transverserows, as shown in Fig. 5, with spaces 6 between each pair, as shown inFigs. 5 and G, such spaces 6 being somewhat greater in width than thediameter of the tubes 1, or tubes 1 may be arranged in sets of double ormultiple rows, with spaces 6 between each set, and such spaces lyingparallel to the axis of the steam and water drum 4. This latterarrangement is shown in Figs. 9 and 10. In the sides and ends of thecasing are doors in or openings through the casing, (designated as 7 and7, respectively.) When the openings 7 in the ends are used, those in thesides 7 may be omitted, and vice versa, or both maybe used inconjunction.

When it is desired to remove an injured tube, (see Fig. 1,) theoperation consists of loosening the tube at both ends from therespective headers to which it is fast, then lower it until its upperend will'swing clear of the lower face of this upper header, next swingthis upper end into the nearest pocket 2" in such upper header, andraise the tube until its lower end is clear of the lower header 3. Thenswing the lower end of the injured tube outward through the passage 6 toopening 7 opposite the said passage 6, and remove it through suchopening 7. The operation of putting in a new tube is the reverse of theabove-described operation of removing an injured one. By inserting a rodthrough the opening 2",that communicates with the pocket 2*,that wasmade use of in the above-described operations, the injured as well asthe new tube can be more easily and quickly guided to the said pocket,although the operation can be performed without so doing. In cases whereit is not convenient to have the openings in the sides of theboiler-casing and where the tubes are arranged as in the abovedescribedcase the tube when it has reached the point where its upper end is inthe pocket 2 and the lower end swings clear of the lower header can beswung into pocket 3 in the lower header and the top end of the tubeswung out until it is in the passage 6, (see Fig. 1,) when it can bepassed out into the fire-room through passage 7 The reverse operationapplies to the inserting of a new tube. A rod may be inserted throughthe hole 3 in lower header for guiding the tube into pocket 3.

Where the passages 6 are parallel to the axis of the steam and waterdrum, there would be an opening 7 in the casing opposite each suchspace, (see Figs. 1 and 9,) and the operation of removing a tube wouldconsist of getting the injured tube into the pocket 2 and to swing clearof the lower header, as before, and then swinging the lower end of thetube away from the end casing in which the openings '7 are until the topend of the tube came clear of the upper header, which will then permitsuch tube to be passed out through the said opening 7 opposite therespective passage 6. A new tube would be put in in the reverse manner.

In order to make the boiler more compact, one pocket in the header maybe arranged to receive more than four tubes (see Fig. 10) as, forexample, any tube in either of the second rows of tubes from the space 6can be removed by first removing one or two of the tubes in the rowsadjacent to the passage 6.

\Vhile I have shown my invention as used in connection with a verticaltype of boiler, I desire it to be understood that it can be used equallyas welLin the types of boilers where the tubes are inclined orhorizontal, and, furthermore, that changes in and variations from thespecific constructions shown and described would readily suggestthemselves to persons skilled in the art and still fall within thespirit and scope of my invention, and I do not, therefore, desire toconfine myself to the exact constructions and arrangements as shown anddescribed; but,

Having set forth the object and nature of my invention and a form ofapparatus embodying the principle thereof, what I claim as new anduseful, and desire to secure by Letters Patent, is-

1. In a water-tube boiler, the combination of two headers, banks oftubes in communi cation at their respective ends with such headers, freespaces betweenthe banks of tubes, such free spaces havingawidth greaterthan the diameter of the tubes, with pockets or indentations in theheaders, such pockets opening into the said free spaces.

2. In a water-tube boiler, the combination oftwo headers, banks of tubesin communication at their respective ends with such headers, free spacesbetween the banks of tubes, such free spaces having a width greater thanthe diameter of the tubes, pockets in the headers, such pockets openinginto the said free spaces, with suitable openings through the headersand communicating with the said pockets, as and for the purpose setforth.

3. In a water-tube boiler, the combination of two headers, banks oftubes in communication at their respective ends with such headers, freespaces between the banks of tubes, such free spaces having a widthgreater than the diameter of the tubes, pockets in the headers, suchpockets opening into the said free spaces, with openings through theboiler casing and in communication with the said free spaces.

4. In a water-tube boiler, the combination of banks of tubes incommunication at each of their respective ends with a series of headers,free spaces between the banks of tubes, such free spaces having a widthgreater than the diameter of the tubes, with pockets or indentationsformed by the said headers, such pockets opening into said free spaces.

5. In a water-tube boiler, the combination of banks of tubes incommunication at each of their respective ends witha series of headers,free spaces between the banks of tubes, such free spaces having a widthgreater than the diameter of the tubes, pockets formed by the saidheaders, such pockets opening into the said free spaces, with suitableopenings formed by the headers and establishing communication betweensuch pockets and the free space without the boiler, as and for thepurpose set forth.

6. In a water-tube boiler, the combination of banks of tubes incommunication at each of their respective ends with a series of headers,free spaces between the banks of tubes, such free spaces having a widthgreater than the diameter of the tubes, pockets formed by the saidheaders, such pockets opening into the said free spaces with openingsthrough the boiler-casing and in communication with the said freespaces.

Signed at New York, in the county of New York and State of New York,this 15th day of May, A. D. 1901.

CHAS. B. REARICK.

lVitnesses:

T. O. REARIoK, G. K. FULLAGAR.

